As wintry conditions develop on the hills, we put questions from Walkhighlands users to Scottish Avalanche Information Service co-ordinator and senior forecaster for the Cairngorms, Mark Diggins. 1. How many avalanches are there in Scotland a year involving walkers and what are the most common causes? During last winter 2019/20, 27 avalanches were human triggered – this basically means that they were set off by people who were traveling in avalanche start zones in avalanche terrain (see diagram below) walkers are equally susceptible in terms of entering this type of terrain when following paths that are covered by snow. For…